Also known as influenza vaccines, flu shots are given out once a year to protect against the flu. The flu shot stimulates the immune system to build antibodies to three or four strains of flu viruses in the hopes that it will offer protection from the current strains present in the community. Each year the Centers for Disease Control (CDC) monitors the strains of Influenza globally and incorporates the appropriate antigens in the new vaccine. For best protection the vaccine should be acquired annually.
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Immunizations:
Flu vaccine protects you against viruses while the pneumonia vaccine will protect you against bacterial pneumonia such as strep pneumoniae. By all means get both shots for your protection.
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4

Wait until better:
Flu vaccines have attenuated virus particles and are engineered to give you a small dose of virus like particles so that your body can mount an immune response and fight off the real infection in the future. If you are feeling sick, before getting the flu vaccine it will be hard to tell if your symptoms are from a vaccine a reaction or a normal progression of your cold. Check with your doc first.
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8

Nasal vs injected:
What you mean by activated is unclear. There is no activated vaccine I am aware of. The injected vaccine is prepared from inactivated (killed) virus & cannot give you the flu. You can develop a shot reaction (mild) but it is not the flu. The nasal mist is a much weakened but live virus & rarely causes a mild flu like illness, but far less intense than a regular flu would be.
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10

No!:
No, the flu shot is a dead vaccination and not able to pass infection. There is no live virus there to cause infection and therefore zero percent chance of this occuring. The nasal flu vaccine, on the other hand, is a live virus vaccine. However, it is engineered to die at body temperature and therefore not able to cause significant illness. It may cause runny nose and congestion but not full flu.
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The flu, otherwise known as influenza, is a viral infection of the nose and throat. Symptoms of influenza include fever, chills, runny nose, muscle aches, fatigue, malaise, headaches, and coughing. Children with the flu often have nausea and vomiting as well. Some strains of the flu are preventable by getting a yearly flu vaccine (a "flu shot").
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Latin word for cow, vacca, because of the smallpox/cowpox work of edward jenner, vaccination is the administration of a substance, live organism or otherwise, that stimulates the immune response to prevent a specific disease. Primarily a preventative procedure, some vaccines can be used for therapy.
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